CN110925163A - Flat miniature air pump - Google Patents

Flat miniature air pump Download PDF

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Publication number
CN110925163A
CN110925163A CN201911265207.0A CN201911265207A CN110925163A CN 110925163 A CN110925163 A CN 110925163A CN 201911265207 A CN201911265207 A CN 201911265207A CN 110925163 A CN110925163 A CN 110925163A
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CN
China
Prior art keywords
cylinder
air duct
air
communicated
piston
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Withdrawn
Application number
CN201911265207.0A
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Chinese (zh)
Inventor
陈东海
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Anhui Guandong Technology Co Ltd
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Anhui Guandong Technology Co Ltd
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Filing date
Publication date
Application filed by Anhui Guandong Technology Co Ltd filed Critical Anhui Guandong Technology Co Ltd
Priority to CN201911265207.0A priority Critical patent/CN110925163A/en
Publication of CN110925163A publication Critical patent/CN110925163A/en
Withdrawn legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/02Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders arranged oppositely relative to main shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123Fluid connections

Abstract

The invention relates to the technical field of miniature air pumps, in particular to a flat miniature air pump of a miniature sphygmomanometer. The flat type miniature air pump comprises a first pipe body, a first piston group, a transmission device, a second piston group and a second pipe body; the first pipe body comprises: a first air duct, a second air duct and a third air duct; the air duct II is of an arc-shaped structure, and the lower end of the air duct III is communicated with the top of the air duct II. The invention enables the whole structure of the miniature air pump to be flattened, and is convenient for the use and storage of the ultrathin arm type electronic sphygmomanometer; the motor rotates a circle to complete the pressurization of two groups of multiple cylinder bodies, the pressurization amount is large, and the pressurization speed is high.

Description

Flat miniature air pump
Technical Field
The invention relates to the technical field of miniature air pumps, in particular to a flat miniature air pump of a miniature sphygmomanometer.
Background
The miniature air pump is a gas conveying device which has small volume, is provided with a gaseous working medium and is mainly used for multiple purposes such as gas sampling, gas circulation, vacuum adsorption, vacuum pressure maintaining, air exhaust, inflation, pressurization and the like.
The micro air pump is divided into the following parts according to the purposes: a micro negative pressure pump, a micro vacuum pump, a micro gas circulating pump, a micro gas sampling pump, a micro inflating pump, a micro air suction pump, a micro air pumping and inflating dual-purpose pump and the like; according to the working principle, the device is divided into a diaphragm type, an electromagnetic type, an impeller type, a piston type and the like. The miniature air pump is mainly a miniature vacuum pump, which is widely applied to the industries of general medical treatment and health, scientific research, laboratories, environmental protection, instruments, chemical engineering and the like.
The miniature air pump used in arm electronic sphygmomanometer is cylindrical in shape, and its basic structure principle is that the motor drives eccentric wheel to make the support frame drive air bag to make compression and expansion movement so as to form air exhaust and suction. The purpose of this structure using three air bags is to increase the amount of pressurization because the amount of pressurization of the arm type electronic sphygmomanometer is large. The traditional cylindrical micro air pump cannot meet the requirement of the existing ultrathin arm type electronic sphygmomanometer which is thinner and lighter and takes light and portable as a leading direction.
There is a need for a flat miniature air pump suitable for use with a small sphygmomanometer.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a flat micro air pump suitable for use in a small blood pressure monitor. The invention achieves the above purpose through the following technical scheme.
The invention provides a flat type miniature air pump, which comprises a first pipe body, a first piston group, a transmission device, a second piston group and a second pipe body;
the first pipe body comprises: a first air duct, a second air duct and a third air duct;
the air duct II is of an arc-shaped structure, and the lower end of the air duct III is communicated with the top of the air duct II;
the upper part of the first air duct is connected with the second air duct;
the first piston group comprises: the piston I, the cylinder I, the one-way valve I and the one-way valve II are connected in series;
the first cylinder body comprises: the cylinder body I and the cylinder body II;
the number of the cylinder bodies is multiple;
the transmission device includes: the device comprises a motor, a transmission plate, a rotating shaft, a sliding block and a slideway;
the output end of the motor is connected with the lower end of the transmission plate, the upper end of the transmission plate is movably connected with the rotating shaft, and the rotating shaft is movably connected with the sliding block;
the slide way is of a rectangular frame body structure, and the slide block is arranged in the middle of the inside of the slide way frame body structure;
the second cylinder body is of a cylindrical structure with the upper end closed and the lower end opened;
the first cylinder body is of a cylindrical structure, and the upper end face of the first cylinder body is connected with the upper end face of the inside of the second cylinder body;
the inner diameter of the first cylinder body is larger than the outer diameter of the second cylinder body;
the first check valve is of an air outlet valve structure, the air outlet end of the first check valve is connected with the lower end of the first air guide pipe, and the air inlet end of the first check valve is communicated with the inside of the second cylinder;
the second one-way valve is of an air inlet valve structure, the air outlet end of the second one-way valve is communicated with the space between the first cylinder and the second cylinder, and the air inlet end of the second one-way valve is communicated with the inside of the second cylinder;
the second pipe body comprises: a fourth air duct, a fifth air duct and a sixth air duct;
the upper end of the air duct II is communicated with the bottom of the air duct II, and the upper end of the air duct II is communicated with the air duct II;
the second piston group includes: a piston II, a cylinder II, a one-way valve III and a one-way valve IV;
the second cylinder block includes: a third cylinder body and a fourth cylinder body;
the number of the second cylinder bodies is multiple;
the cylinder body IV is of a cylindrical structure with the upper end closed and the lower end opened;
the third cylinder body is of a cylindrical structure, and the lower end face of the third cylinder body is connected with the lower end face of the inner part of the fourth cylinder body;
the inner diameter of the cylinder III is larger than the outer diameter of the cylinder IV;
the third one-way valve is of an air outlet valve structure, the air outlet end of the third one-way valve is connected with the upper end of the fourth air guide tube, and the air inlet end of the third one-way valve is communicated with the inside of the fourth cylinder;
the air outlet end of the one-way valve is communicated with the space between the cylinder III and the cylinder IV, and the air inlet end of the one-way valve is communicated with the inside of the cylinder IV;
the cylinder body I, the cylinder body II and the motor are fixed;
the upper end of the first piston extends into the second cylinder, and the lower end of the first piston is fixed on the upper surface of the slide way;
the upper end of the second piston extends into the fourth cylinder, and the upper end of the second piston is fixed to the lower surface of the slide way.
In one embodiment, the inner wall surface of the slide frame body structure and the outer wall surface of the slide are smooth.
In one embodiment, the first and fourth airway tubes both conform to the steepest curve configuration.
In one embodiment, the second air duct and the fifth air duct are in a semi-annular tubular structure.
In one embodiment, the gas-guiding tube has a tapered structure from top to bottom.
In one embodiment, the fourth air duct has a tapered structure from top to bottom.
The invention has the following beneficial effects:
1. the whole structure of the miniature air pump is flattened, and the ultrathin arm type electronic sphygmomanometer is convenient to use and store.
2. The motor rotates a circle to complete the pressurization of two groups of multiple cylinder bodies, the pressurization amount is large, and the pressurization speed is high.
3. The unique design of the air inlet and outlet structure greatly reduces the resistance generated when the pressure inside the cylinder body changes.
Drawings
Fig. 1 is an overall structural view of the present invention.
Fig. 2 is a partial structural view one of the present invention.
Fig. 3 is a second view of a portion of the structure of the present invention.
Fig. 4 is a view showing a part of the structure of the present invention.
Fig. 5 is a partial structural view four of the present invention.
Fig. 6 is a partial structural view five of the present invention.
Fig. 7 is a partial structural view six of the present invention.
Fig. 8 is a seventh view of a portion of the structure of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those embodiments can be easily implemented by those having ordinary skill in the art to which the present invention pertains. However, the present invention may be embodied in many different forms and is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, components not connected to the present invention will be omitted from the drawings.
As shown in figure 1, a flat type micro air pump comprises a first pipe body 1, a first piston group 2, a transmission device 3, a second piston group 4 and a second pipe body 5;
as shown in fig. 2, the first pipe 1 includes: the air duct I11, the air duct II 12 and the air duct III 13;
the second air duct 12 is of an arc-shaped structure, and the lower end of the third air duct 13 is communicated with the top of the second air duct 12;
the upper part of the air duct I11 is connected with the air duct II 12;
as shown in fig. 3 and 4, the piston group one 2 includes: the piston I21, the cylinder I22, the one-way valve I23 and the one-way valve II 24;
the cylinder block one 22 includes: cylinder one 221 and cylinder two 222;
the number of the first cylinder bodies 22 is multiple;
as shown in fig. 5, the transmission 3 includes: the motor 31, the transmission plate 32, the rotating shaft 33, the sliding block 34 and the slide way 35;
the output end of the motor 31 is connected with the lower end of the transmission plate 32, the upper end of the transmission plate 32 is movably connected with the rotating shaft 33, and the rotating shaft 33 is movably connected with the sliding block 34;
the slide way 35 is a rectangular frame body structure, and the slide block 34 is arranged in the middle of the inside of the frame body structure of the slide way 35;
the second cylinder 222 is a cylindrical structure with the upper end closed and the lower end opened;
the first cylinder 221 is of a cylindrical structure, and the upper end face of the first cylinder is connected with the upper end face of the interior of the second cylinder 222;
the inner diameter of the first cylinder 221 is larger than the outer diameter of the second cylinder 222;
the first check valve 23 is of an air outlet valve structure, the air outlet end of the first check valve is connected with the lower end of the first air guide pipe 11, and the air inlet end of the first check valve is communicated with the inside of the second cylinder 222;
the second one-way valve 24 is of an air inlet valve structure, the air outlet end of the second one-way valve is communicated with the space between the first cylinder 221 and the second cylinder 222, and the air inlet end of the second one-way valve is communicated with the inside of the second cylinder 222;
as shown in fig. 8, the second pipe body 5 includes: a fourth air duct 51, a fifth air duct 52 and a sixth air duct 53;
the fifth air duct 52 is of an arc-shaped structure, the upper end of the sixth air duct 53 is communicated with the bottom of the fifth air duct 52, and the upper end of the fourth air duct 51 is communicated with the fifth air duct 52;
as shown in fig. 6 and 7, the piston group two 4 includes: a second piston 41, a second cylinder 42, a third one-way valve 43 and a fourth one-way valve 44;
the second cylinder block 42 includes: cylinder three 421 and cylinder four 422;
the number of the second cylinder bodies 42 is multiple;
the cylinder body four 422 is a cylindrical structure with the upper end closed and the lower end opened;
the cylinder body III 421 is of a cylindrical structure, and the lower end face of the cylinder body III is connected with the lower end face of the interior of the cylinder body IV 422;
the inner diameter of the cylinder III 421 is larger than the outer diameter of the cylinder IV 422;
the third check valve 43 is of an air outlet valve structure, the air outlet end of the third check valve is connected with the upper end of the air guide pipe IV 51, and the air inlet end of the third check valve is communicated with the inside of the cylinder IV 422;
the fourth one-way valve 44 is of an air inlet valve structure, the air outlet end of the fourth one-way valve is communicated with the space between the third cylinder 421 and the fourth cylinder 422, and the air inlet end of the fourth one-way valve is communicated with the inside of the fourth cylinder 422;
the cylinder body I22, the cylinder body II 42 and the motor 3 are all fixed;
the upper end of the first piston 21 extends into the second cylinder 222, and the lower end of the first piston is fixed on the upper surface of the slide way 35;
the upper end of the second piston 41 extends into the fourth cylinder 422, and the upper end is fixed on the lower surface of the slide way 35.
Preferably, as an embodiment, the inner wall surface of the frame structure of the slide 35 and the outer wall surface of the slider 34 are smooth, which reduces the friction force.
Preferably, as an implementation mode, the first air duct 11 and the fourth air duct 51 both conform to the steepest curve structure, and this arrangement enables the gas inside the first air duct 11 and the fourth air duct 51 to be led out more quickly.
Preferably, as an implementation mode, the second air duct 12 and the fifth air duct 52 are semi-annular tubular structures, and this arrangement reduces the flow resistance of the gas when the gas flows into the second air duct 12 and the fifth air duct 52.
Preferably, as an implementation mode, the air duct one 11 has a tapered structure from top to bottom, and this arrangement reduces the resistance of the air flowing through the air duct one 11.
Preferably, as an implementation mode, the gas guiding tube four 51 has a tapered structure from top to bottom, and this arrangement reduces the resistance of the gas flowing through the gas guiding tube four 51.
The working principle of the invention is as follows:
① when the motor 31 is started and rotates 180 degrees clockwise, the motor 31 drives the transmission plate 32 to rotate 180 degrees clockwise along the motor 31, the transmission plate 32 drives the slide block 34 to move right and left in the slide way 35 through the rotating shaft 33, the slide block 34 drives the slide way 35 to move downwards, the slide way 35 moves downwards to drive the piston one 21 to move downwards, the inside of the cylinder two 222 forms negative pressure, the one-way valve two 24 is opened and sucks air from the area between the cylinder one 221 and the cylinder two 222, the slide way 35 moves downwards to drive the piston two 41 to move downwards, the inside of the cylinder four 422 forms positive pressure, the one-way valve three 43 is opened, and the air is discharged through the one-way valve three 43, the air guide tube four 51, the air guide tube five 52 and;
② the motor 31 rotates 180 degrees clockwise continuously, the motor 31 drives the driving plate 32 to rotate 180 degrees clockwise along the motor 31, the driving plate 32 drives the slide block 34 to move left and right in the slide way 35 through the rotating shaft 33, the slide block 34 drives the slide way 35 to move upwards, the slide way 35 moves upwards to drive the piston one 21 to move upwards, the cylinder two 222 forms positive pressure inside, the one-way valve three 43 is opened, gas is led out through the one-way valve three 43, the gas guide pipe four 51, the gas guide pipe five 52 and the gas guide pipe six 53, the slide way 35 moves upwards to drive the piston two 41 to move upwards, negative pressure is formed inside the cylinder four 422, the one-way valve four 44 is opened, and gas is sucked from the area between the cylinder three 421.

Claims (6)

1. A flat type miniature air pump comprises a first pipe body (1), a first piston group (2), a transmission device (3), a second piston group (4) and a second pipe body (5);
the method is characterized in that: the first pipe body (1) comprises: a first air duct (11), a second air duct (12) and a third air duct (13);
the second air duct (12) is of an arc-shaped structure, and the lower end of the third air duct (13) is communicated with the top of the second air duct (12);
the upper part of the first air duct (11) is connected with the second air duct (12);
the piston group one (2) comprises: the piston I (21), the cylinder I (22), the one-way valve I (23) and the one-way valve II (24);
the first cylinder block (22) comprises: a first cylinder (221) and a second cylinder (222);
the number of the first cylinder bodies (22) is multiple;
the transmission (3) comprises: the device comprises a motor (31), a transmission plate (32), a rotating shaft (33), a sliding block (34) and a slide way (35);
the output end of the motor (31) is connected with the lower end of the transmission plate (32), the upper end of the transmission plate (32) is movably connected with the rotating shaft (33), and the rotating shaft (33) is movably connected with the sliding block (34);
the slide way (35) is of a rectangular frame body structure, and the sliding block (34) is arranged in the middle of the inside of the frame body structure of the slide way (35);
the second cylinder body (222) is a cylindrical structure with the upper end closed and the lower end opened;
the first cylinder body (221) is of a cylindrical structure, and the upper end face of the first cylinder body is connected with the upper end face of the interior of the second cylinder body (222);
the inner diameter of the first cylinder (221) is larger than the outer diameter of the second cylinder (222);
the first check valve (23) is of an air outlet valve structure, the air outlet end of the first check valve is connected with the lower end of the first air guide pipe (11), and the air inlet end of the first check valve is communicated with the inside of the second cylinder (222);
the second one-way valve (24) is of an air inlet valve structure, the air outlet end of the second one-way valve is communicated with the space between the first cylinder (221) and the second cylinder (222), and the air inlet end of the second one-way valve is communicated with the inside of the second cylinder (222);
the second pipe body (5) comprises: a fourth air duct (51), a fifth air duct (52) and a sixth air duct (53);
the fifth air duct (52) is of an arc-shaped structure, the upper end of the sixth air duct (53) is communicated with the bottom of the fifth air duct (52), and the upper end of the fourth air duct (51) is communicated with the fifth air duct (52);
the second piston group (4) comprises: a piston II (41), a cylinder II (42), a one-way valve III (43) and a one-way valve IV (44);
the second cylinder (42) includes: a third cylinder (421) and a fourth cylinder (422);
the number of the second cylinder bodies (42) is multiple;
the cylinder body IV (422) is a cylindrical structure with the upper end closed and the lower end opened;
the third cylinder (421) is of a cylindrical structure, and the lower end face of the third cylinder is connected with the lower end face of the interior of the fourth cylinder (422);
the inner diameter of the cylinder III (421) is larger than the outer diameter of the cylinder IV (422);
the third check valve (43) is of an air outlet valve structure, the air outlet end of the third check valve is connected with the upper end of the air guide pipe (51), and the air inlet end of the third check valve is communicated with the inside of the cylinder body (422);
the check valve IV (44) is of an air inlet valve structure, the air outlet end of the check valve IV is communicated with the space between the cylinder III (421) and the cylinder IV (422), and the air inlet end of the check valve IV is communicated with the inside of the cylinder IV (422);
the cylinder body I (22), the cylinder body II (42) and the motor (3) are fixed;
the upper end of the first piston (21) extends into the second cylinder (222), and the lower end of the first piston is fixed on the upper surface of the slide way (35);
the upper end of the second piston (41) extends into the fourth cylinder (422), and the upper end of the second piston is fixed to the lower surface of the slide way (35).
2. The flat type micro air pump according to claim 1, wherein: the inner wall surface of the frame body structure of the slide way (35) and the outer wall surface of the slide block (34) are smooth.
3. The flat type micro air pump according to claim 1, wherein: the first air duct (11) and the fourth air duct (51) both conform to the steepest curve structure.
4. The flat type micro air pump according to claim 1, wherein: the second air duct (12) and the fifth air duct (52) are semi-annular tubular structures.
5. The flat type micro air pump according to claim 1, wherein: the first air duct (11) is of a tapered structure from top to bottom.
6. The flat type micro air pump according to claim 1, wherein: the fourth air duct (51) is of a tapered structure from top to bottom.
CN201911265207.0A 2019-12-11 2019-12-11 Flat miniature air pump Withdrawn CN110925163A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911265207.0A CN110925163A (en) 2019-12-11 2019-12-11 Flat miniature air pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911265207.0A CN110925163A (en) 2019-12-11 2019-12-11 Flat miniature air pump

Publications (1)

Publication Number Publication Date
CN110925163A true CN110925163A (en) 2020-03-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911265207.0A Withdrawn CN110925163A (en) 2019-12-11 2019-12-11 Flat miniature air pump

Country Status (1)

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CN (1) CN110925163A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201209545Y (en) * 2008-06-06 2009-03-18 台州市压缩机制造有限公司 Symmetrical double cylinder straight-connecting oilless air compressor
CN202673607U (en) * 2012-06-20 2013-01-16 杭州海胜制冷设备有限公司 Single-drive eight-cylinder compressor structure
DE102012223114A1 (en) * 2012-12-13 2014-06-18 Continental Teves Ag & Co. Ohg Dual-piston compressor unit for pneumatic spring system of vehicle, has motor with drive shaft whose axis is arranged eccentrically to central axis of two cylinders in opposing state
CN105422415A (en) * 2014-09-12 2016-03-23 厦门科际精密器材有限公司 Air pump
CN108272509A (en) * 2018-02-08 2018-07-13 哈尔滨工业大学深圳研究生院 A kind of suspension type multioperation arm system
CN109681403A (en) * 2019-01-21 2019-04-26 宁波布拉沃冲气具制造有限公司 A kind of air charging system and inflation method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201209545Y (en) * 2008-06-06 2009-03-18 台州市压缩机制造有限公司 Symmetrical double cylinder straight-connecting oilless air compressor
CN202673607U (en) * 2012-06-20 2013-01-16 杭州海胜制冷设备有限公司 Single-drive eight-cylinder compressor structure
DE102012223114A1 (en) * 2012-12-13 2014-06-18 Continental Teves Ag & Co. Ohg Dual-piston compressor unit for pneumatic spring system of vehicle, has motor with drive shaft whose axis is arranged eccentrically to central axis of two cylinders in opposing state
CN105422415A (en) * 2014-09-12 2016-03-23 厦门科际精密器材有限公司 Air pump
CN108272509A (en) * 2018-02-08 2018-07-13 哈尔滨工业大学深圳研究生院 A kind of suspension type multioperation arm system
CN109681403A (en) * 2019-01-21 2019-04-26 宁波布拉沃冲气具制造有限公司 A kind of air charging system and inflation method

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